in this grep have been used backreference expression in this example
Code:
# grep -v '\([[:alpha:]]\)\1' file
-v --> means for except for and print others (does not matches) \( pattern \) --> tells expression which pattern to referenced [[:alpha:]] --> Any alphabetic character so [A-Z] or [a-z] \1 --> our referenced string which we say in \( pattern \) so \( pattern \) 's equal to \1
finally if any line contains same char ( [A-Z] or [a-z] ) in side by side
for example (Tesst) and do not print this ( grep -v )
Alrigt, I need to write a shell script where it counts the number of folders and files and dispays "My home directory has 'x' files and 'y' directories."
So, I was thinking of doing this.
set x = `ls | wc`
so, if I have 8 files and folders in my home directory, x is not 8.
now, I was... (1 Reply)
Anyone know where I can get started in C++ programming in unix?
Any good free tutorials or websites to start at?
I am okay in unix scripting but have never done c programming of any sort...
What are the main advantages of using C++ ? (2 Replies)
hi guys,
i have a DEl xps laptop cor 2 duo 2.2
i have vista installed on it
i want to install a dual Boot UNIX on it..
can some one guide me ...cause i m tottaly new to UNIX
i want to install unix on that laptop along with Vista....
thx
any help would be deeply appreciated
(sorry if i... (5 Replies)
I need to write a script to test a nsort c program. I have written 8 .txt files with different cases. Also 8 .txt files with expected outcome. The shell I have written always "test pass" for the first case but always "fail" for the rest... Here is a portion of my code (as I still don't know how to... (5 Replies)
hy guys,
I have perl script provided to me but i need to convert it into shell .Can you help me in this using sed shell command.
cat /etc/passwd |perl -ne '/^(\w+):\w+: (\w+)/ and print "$1, $2\n";' (1 Reply)
i write a shell program and i execute that after i made a bin directiry in my home directory(i didnt give any permissions)
now i change to other directory.then i execute it bit it is saying " no such a file or directory"
can any one help me please (2 Replies)
Hi people....
I have just started to learn unix.I want to know which version of Unix to install plus how to install it.I need to practise and make myself aware of how unix works.My thread is from an educational point of view.Also please feel free to give your suggestions as I am... (3 Replies)
i have windows 8 host on Dell Laptop
vmware 9
redhat 7.2 iso downloaded through redhat official site
after installation on vm it only boots into text dont show graphics
Please guide:( (1 Reply)
Hello so I've stored some csv data to be read into variables like this
Name,Team,Shop,Shoe
etc,etc,etc,etc
Code:
sep=","
{
while IFS=$sep read Name Team Shop Shoe
do
count=1
dirname=$Name
while
do
((count++))
dirname="${Name}$count" (4 Replies)
Discussion started by: darklord173
4 Replies
LEARN ABOUT DEBIAN
lr_environment
LR_ENVIRONMENT.IN(1) LogReport's Lire Documentation LR_ENVIRONMENT.IN(1)NAME
lr_environment - Export Lire configuration in shell script form
SYNOPSIS
eval `lr_environment`
DESCRIPTION
The lr_environment command is used to import the Lire configuration in Lire shell scripts.
All of Lire configuration variables will be written in a format that can be evaled by the shell.
Shell scripts don't usually have to use that command, since it is done by the defaults file sourced by each command.
The old names used by when the configuration was done in shell script are also exported by this script for backward compatibility.
AUTHOR
Francis J. Lacoste <flacoste@logreport.org>
VERSION
$Id: lr_environment.in,v 1.12 2006/07/23 13:16:33 vanbaal Exp $
COPYRIGHT
Copyright (C) 2003 Stichting LogReport Foundation LogReport@LogReport.org
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program (see COPYING); if not, check with
http://www.gnu.org/copyleft/gpl.html.
Lire 2.1.1 2006-07-23 LR_ENVIRONMENT.IN(1)
11-13-2010
